ZSM-12 is used in various reaction processes such as cracking, hydrocracking, isomerization, alkylation, polymerization, reforming, dehydration, etc
ZSM-12 is used in various reaction processes such as cracking, hydrocracking, isomerization, alkylation, polymerization, reforming, dehydration, etc
ZSM 12 chemical formula: Al6SinP6-nO24]-CHA,0.8 < n < 1.7
The structural properties of two series of high silicon aluminum ratio ZSM-12 zeolites synthesized using methyltriethylammonium iodide (MTEA) and tetraethylammonium iodide (TEA) as template agents The XRD results indicate that due to different template agents, the two series of ZSM-12 zeolites exhibit significant differences. As the silicon aluminum ratio increases, the decrease is in the T located in the main pore channel_ 1-T_ Skeleton aluminum at position 4. Also using NH_ The surface acidity properties of ZSM-12 zeolites from MTEA and TEA series were systematically studied using two methods, 8-TPD and pyridine-IR-TPD; The catalytic performance of the molecular sieve was studied by cracking isopropylbenzene, alkylating toluene with methanol, and isomerizing xylene.
ZSM 12 Specification
Items | Unit | Data |
SiO2/Al2O3 | mol/mol | 40-200 |
Na2O Content | wt% | 0.04 |
Crystal Size | μm | 0.2-0.4 |
BET Surface Area | m2/g | >400 |
Pore Size | nm | 0.6 |
Bulk density | Kg/m³ | 600 |
X-ray Crystallinity | % | 95 |
Pore Capacity | ml/g | >0.3 |
Lattice constant (nm) | Å | |
Ignition Loss（550℃ 3h） | wt% | <8 |
Water Adsorption at 50% EH and 20FC | wt% | 5 |
ZSM-12 is used in various reaction processes such as cracking, hydrocracking, isomerization, alkylation, polymerization, reforming, dehydration, etc
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